On Sun, Aug 07, 2005 at 05:54:16PM -0500, Jay Leafey enlightened us:
> I don't know if this is much use, but here's the command I used to add
> the Sun JDK to alternatives after I installed the RPM (look out for line
> wrap):
>
> alternatives \
> --install /usr/bin/java java /usr/java/jdk1.5.0_04/jre/bin/java 10 \
> --slave /usr/bin/rmiregistry rmiregistry \
> /usr/java/jdk1.5.0_04/jre/bin/rmiregistry \
> --slave /usr/lib/jvm/jre jre /usr/java/jdk1.5.0_04/jre
>
> This sets all of the slaves except jre_exports, which I could not seem
> to find in the Sun JDK. Anybody got any ideas on what this should
> actually point to?
>
> Anyway, I then used the command 'alternatives --set java
> /usr/java/jdk1.5.0_04/jre/bin/java' to switch over to using the Sun
> Java. Heres what the alternatives output looks like afterwards:
>
> [root@jaybird ~]# alternatives --display java
> java - status is manual.
> link currently points to /usr/java/jdk1.5.0_04/jre/bin/java
> /usr/lib/jvm/jre-1.4.2-gcj/bin/java - priority 1420
> slave rmiregistry: /usr/lib/jvm/jre-1.4.2-gcj/bin/rmiregistry
> slave jre_exports: /usr/lib/jvm-exports/jre-1.4.2-gcj
> slave jre: /usr/lib/jvm/jre-1.4.2-gcj
> /usr/java/jdk1.5.0_04/jre/bin/java - priority 10
> slave rmiregistry: /usr/java/jdk1.5.0_04/jre/bin/rmiregistry
> slave jre_exports: (null)
> slave jre: /usr/java/jdk1.5.0_04/jre
> Current `best' version is /usr/lib/jvm/jre-1.4.2-gcj/bin/java.
> [root@jaybird ~]# java -version
> java version "1.5.0_04"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_04-b05)
> Java HotSpot(TM) Client VM (build 1.5.0_04-b05, mixed mode, sharing)
>
> The reason the GCJ version shows up as the 'best' is because it has a
> higher priority (1420) than the Sun version (10). Just change the
> priority in the 'alternatives --install' command listed above to
> something higher than 1420 and the Sun version will become the 'best'
> version.
>
> Just my $.02.
The jpackage.org folks take things even further. Check their spec file, but
it results in:
[hyclak@euclid ~]$ /usr/sbin/alternatives --display java
java - status is auto.
link currently points to /usr/lib/jvm/jre-1.5.0-sun/bin/java
/usr/lib/jvm/jre-1.4.2-gcj/bin/java - priority 1420
slave keytool: (null)
slave orbd: (null)
slave policytool: (null)
slave rmid: (null)
slave rmiregistry: /usr/lib/jvm/jre-1.4.2-gcj/bin/rmiregistry
slave servertool: (null)
slave tnameserv: (null)
slave jre_exports: /usr/lib/jvm-exports/jre-1.4.2-gcj
slave jre: /usr/lib/jvm/jre-1.4.2-gcj
slave java.1.gz: (null)
slave keytool.1.gz: (null)
slave kinit.1.gz: (null)
slave klist.1.gz: (null)
slave ktab.1.gz: (null)
slave orbd.1.gz: (null)
slave policytool.1.gz: (null)
slave rmid.1.gz: (null)
slave rmiregistry.1.gz: (null)
slave servertool.1.gz: (null)
slave tnameserv.1.gz: (null)
/usr/lib/jvm/jre-1.5.0-sun/bin/java - priority 1503
slave keytool: /usr/lib/jvm/jre-1.5.0-sun/bin/keytool
slave orbd: /usr/lib/jvm/jre-1.5.0-sun/bin/orbd
slave policytool: /usr/lib/jvm/jre-1.5.0-sun/bin/policytool
slave rmid: /usr/lib/jvm/jre-1.5.0-sun/bin/rmid
slave rmiregistry: /usr/lib/jvm/jre-1.5.0-sun/bin/rmiregistry
slave servertool: /usr/lib/jvm/jre-1.5.0-sun/bin/servertool
slave tnameserv: /usr/lib/jvm/jre-1.5.0-sun/bin/tnameserv
slave jre_exports: /usr/lib/jvm-exports/jre-1.5.0-sun
slave jre: /usr/lib/jvm/jre-1.5.0-sun
slave java.1.gz: /usr/share/man/man1/java-java-1.5.0-sun.1.gz
slave keytool.1.gz: /usr/share/man/man1/keytool-java-1.5.0-sun.1.gz
slave kinit.1.gz: /usr/share/man/man1/kinit-java-1.5.0-sun.1.gz
slave klist.1.gz: /usr/share/man/man1/klist-java-1.5.0-sun.1.gz
slave ktab.1.gz: /usr/share/man/man1/ktab-java-1.5.0-sun.1.gz
slave orbd.1.gz: /usr/share/man/man1/orbd-java-1.5.0-sun.1.gz
slave policytool.1.gz: /usr/share/man/man1/policytool-java-1.5.0-sun.1.gz
slave rmid.1.gz: /usr/share/man/man1/rmid-java-1.5.0-sun.1.gz
slave rmiregistry.1.gz: /usr/share/man/man1/rmiregistry-java-1.5.0-sun.1.gz
slave servertool.1.gz: /usr/share/man/man1/servertool-java-1.5.0-sun.1.gz
slave tnameserv.1.gz: /usr/share/man/man1/tnameserv-java-1.5.0-sun.1.gz
Current best' version is /usr/lib/jvm/jre-1.5.0-sun/bin/java.
Matt
--
Matt Hyclak
Department of Mathematics
Department of Social Work
Ohio University
(740) 593-1263
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